If you work with Microsoft Office documents, you'll never achieve the status of true mobile employee without an office viewing-and-editing suite like Documents To Go. The premium build goes beyond the free, standard version to let you edit and create Office documents, like Word files and Excel spreadsheets. Documents To Go Premium Edition 2.0 adds four new features since the previous version. There's a file browser to delete, rename, and copy and paste all the Microsoft Word, Excel, PowerPoint, and Adobe PDF files across the Documents To Go sub-apps. There's also an enriched PDF To Go app with tools to find and copy text, save as, e-mail a file, and add a bookmark. Tying up a few loose ends, the update now lets you open password-protected Microsoft Word and Excel files that were created in Microsoft Office 2007, and in other Office documents stretching back to Office 97.
When you do return home from your wanderings, you can sync the phone to a desktop app through a USB cable. That spells an end to what was previously a purely manual doc management system between the mobile and desktop, but we'd love to see over-the-air syncing added next.